Modeling of electromagnetic interaction fields in pulsed power systems

   The use of a magnetic pulse device for converting electrical energy into useful mechanical high-speed operation has great prospects for industrial applications. With high speed (1–5 ms) and low consumption (no more than 500 Wh) such installations allow achieving a high economic effect due to the electromagnetic force of mutual repulsion of the armature and the inductor. At the same time, the process of eddy currents in the armature, which is the fundamental process, has been poorly studied.

   The aim of the research is to study the processes of magnetic field and eddy current generation in the armature, measure their intensities, which ultimately leads to the emergence of a back-action force on the inducer's electromagnetic field that generated them.

   Thanks to the methods for modeling pulsed electromagnetic interaction considered in this article, it allows further regulating on full-scale samples a current pulse of certain amplitude, which creates Foucault currents (eddy currents) in the armature. It creates prerequisites for disrupting the adhesive bonds between the layers of the material being cleaned and the surface within the limits of elastic deformation zone, which constitutes the most relevant industrial application of a magnetic-pulse device. Thus, the mathematical framework for modeling physical processes in the ELCUT 6.0 Professional Software Package is based on the method of nodal potentials for magnetic and electric fields. The use of this method allows describing the distribution of the magnetic field and eddy current density in the armature with sufficient accuracy at all stages of pulsed action. The obtained simulation results provide a basis for further optimization of the design of the magnetic-pulse device and the well-reasoned selection of current pulse parameters that ensure maximum efficiency in disrupting adhesive bonds with minimal energy consumption.

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